| Title |
1-Gb/s Readout Amplifier Array for Panoramic Scan LADAR Systems |
| Authors |
김다영(Kim, Dayeong) ; 박성민(Park, Sung Min) |
| DOI |
https://doi.org/10.5370/KIEE.2016.65.3.452 |
| Keywords |
Array ; CMOS ; Feedforward ; LADAR ; Replica ; Transimpedance amplifier |
| Abstract |
In this paper, a dual-channel readout amplifier array is realized in a standard 0.18μm CMOS technology for the applications of panoramic scan LADAR systems. Each channel consists of a PIN photodiode with 0.9 A/W responsivity and a 1.0 Gb/s readout amplifier(ROA). The proposed ROA shares the basic configuration of the previously reported feedforward TIA, except that it exploits a replica input to exclude a low pass filter(LPF), thus reducing chip area and improving integration level, and to efficiently reject common-mode noises. Measured results demonstrate that each channel achieves 70dB{Ω} transimpedance gain, 829 MHz bandwidth, -22 dBm sensitivity for 10^{-9}BER, -34 dB crosstalk between adjacent channels, and 45 mW power dissipation from a single 1.8 V supply. |